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This paper presents the synthesis and characterization of magnetite particles (covered and stabilized with mercaptoetnol) functionalized with invertase, using cyanuric chloride as spacer. The above synthesized materials were structurally characterized using Scanning Electron Microscopy, FT-IR spectroscopy, thermal analysis.
An investigation of the scintillation response of rare earth doped fluoride nanoparticles was carried out taking advantage of core/multi-shell structures. A significant enhancement of the scintillation response was observed and attributed to the increase of the volume of the nanoparticles. Larger nanoparticles contain larger fractions of the irradiation cascade, their dimensions approach the electron-hole...
ZnS:Mn nanoparticles of different size have been synthesized using a co-precipitation method. So-prepared ZnS:Mn nanoparticles with capping agent (oleic acid) then were characterized using X-ray diffraction(XRD) and UV-Vis spectroscopy. The particle size of the nanoparticles calculated from the XRD patterns has been found in the range 1.45-2.65nm. Absorption spectra have been obtained using UV-Vis...
We report an experimental investigation into the controlled fabrication of metallic nanospheres on the tip of nanotubes. The fabrication process, nanobubbling, is based on nanofluidic mass delivery at the attogram scale using metal-filled carbon nanotubes (CNTs). Two methods have been investigated including electron-beam-induced bubbling (EBIB) and electromigration-based bubbling (EMBB). Under the...
Aimed at the problem solving of difficult reclaiming nanometer TiO2, the paper conducts a study on magnetic recovering by a series of experiments. Firstly, taking methylene blue as the object, the test compares the photocatalytic performance between self-manufactured TiO2 and commercial TiO2 after 160 minutes photocatalytic degradation. The results show that their degradation rates are 94% and 99%...
Eu/SiO2 Nanoparticles was prepared through sol-gel method. The gel was synthesized through the hydrolysis of a complex solution of containing tetramethoxy-silicane (TMOS) and EuCl3·6H2O. X ray diffraction analysis showed that that there are crystalline materials appeared in the amorphous SiO2. The fluorescence spectroscopic analysis showed that the Eu/SiO2 fluorescence peaked at 590 nm with excitation...
Reactive oxygen species (ROS) and activation of redoxsensitive transcription factors such as nuclear factor (NF)-κB have been implicated in pro-inflammatory responses induced by nanoparticles. However, there is still only little knowledge about the pro-inflammatory responses induced by multi-walled carbon nanotubes (MWCNTs). The objective of the present study was to compare the ability of MWCNTs and...
Tobermorite is a mineral material with good ion exchange properties. The potassium feldspar ore from Lushi country is muscovite syenite. Potassium feldspar was hydrothermally decomposed with CaO as an additive, and then tobermorite nano-scale powder was synthesized. Based on the research work of our group, the adsorption property of tobermorite to Pb2+ from aqueous solution was studied. The factors...
The nanostructured AgSnO2 coating applicable to electrical contact material was prepared in the present study. Ag powders were mixed with 12 wt.% of SnO2 nanopowders by means of high-energy ball milling, and then were sprayed on a pure copper substrate by supersonic plasma spraying. The phase composition and microstructure of the coating were characterized and the microhardness, bonding strength and...
The following topics are dealt with: semiconductor electronics; material device; circuit design; VLSI; process material; quantum well; nanoparticle; carbon nanotube; micromechanical device; sensor; microwave device; photonics; training; management; and education.
Both TiO2 and HfO2 are common materials for semiconductor fabrication that have shown memristive properties. Nanoparticles of these metal oxides have great prospect to provide nanoscale materials with tunable electronic properties for integration in advanced circuits such as neuromorphic networks based on memristive crossbar elements. We seek to take advantage of the unique interaction between the...
Ni-Fe-SiC alloy is a promising material in the fabrication of micro actuator. Electrolytic codeposition technique was adopted in the deposition of Ni-Fe-SiC composite coating on stainless steel substrate, using nickel alloyed with iron as the binder phase and SiC as dispersed particles. The morphology analysis indicated that the deposit with SiC nanoparticles is level and compact and the crystal-planes...
This paper presents the systematic investigation by electrical characterization of PMNT (lead magnesium niobate - lead titanate, Pb(Mg0.33Nb0.67)0.65Ti0.35O3) thin-films with different fabrication parameters. The PMNT thin-films are processed under different conditions including annealing at various temperatures. Capacitance-voltage (C-V), current-voltage (I-V), capacitance-frequency (C-F), dissipation...
High drug loading (DL) carrier is an effective way to cure the cancerous cells. High drug loading is also one of the key issues in the drug delivery research, especially the colonic drug delivery system by oral administration. The times of drug intake could be remarkably reduced if high drug loading carriers are administered. At the same time, the related formulation materials could be effectively...
NANOPACK-Nano Packaging Technology for Interconnect and Heat Dissipation- is a European large-scale integrating project aiming at the development of new technologies and materials for low thermal resistance interfaces and electrical interconnects, by exploring the capabilities offered by nanotechnologies such as carbon nanotubes, nanoparticles and nano-structured surfaces, and by using different enhancing...
In this paper the aspects of thermal interface material characterization are discussed from a practical point of view. A novel method based on existing measurement standards is introduced for a quick and repeatable thermal conductivity measurement of nanoparticle-based thermal greases. The effect of the surface roughness of the DUT fixture is evaluated, as well as a method is introduced for the long...
In recent years, significant developments in nano-particles/fillers for electrical, thermal, and mechanical properties have been observed. In the present work, experimentally the dielectric and thermal properties of standard/nano-filled sample of enamel with Zirconia as filler have been critically examined. The dielectric loss (tan δ), dielectric constant (ε), insulation strength, partial discharge...
Silver nanoparticles (SNPs) have received considerable attention owing to their attractive physicochemical properties, such as small size effect, quantum tunnel effect, surface effect et al. SNPs have recently been reported to be a promising antimicrobial material showing strong inhibition for a wide range of microorganisms. SNPs have currently been used as a new antimicrobial material in different...
The use of a fluorescent probe for inferring the temperature constitutes a simple and cost-effective method that provides semi-invasive thermal imaging with a reasonably good temporal and spatial resolution in either dry or liquid phases. Here, we propose to use a two-component luminescent thermometer comprised of spin crossover nanoparticles (with temperature dependent light absorption) and an appropriate...
Printed electronics is considered a promising technology for low-cost electronics due to its low cost per unit area, typically offered at the expense of degraded performance. Using a combination of synthetic nanoparticles, organic semiconductors, and novel printing techniques, we demonstrate a range of printed electronic devices including transistors, passive components, and a range of chemical sensors...
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